What does the black fist mean? To some, a clenched fist is just a fist. At its worst, it's something capable of inflicting bodily harm. But beyond a clenched fist's ability to pummel lies its capacity ...

The clenched fist has been closely tied to social tumult throughout history, yet the gesture's representation of strength and hope endures. Its message? We shall overcome. Ira L. Black - Corbis/Getty ...